Polished SBC 2 Groove Upper Pulley

The Billet Specialties Polished SBC 2 Groove Upper Pulley (Part Number 80220) is a precision-engineered water pump pulley designed for Small Block Chevy engine builds requiring reliable, clean aesthetics without compromise. This 6.438-inch diameter aluminum pulley accepts V-belt drive systems and features a polished finish that resists corrosion while maintaining the professional appearance demanded in high-performance and show engine applications. Built for short water pump configurations, this two-groove upper pulley integrates seamlessly into both street and competition engine packages.

The 6.438-inch diameter specification is critical for maintaining proper belt tension and serpentine system balance on Small Block Chevy platforms. Aluminum construction keeps rotating mass minimal, reducing parasitic drag and supporting higher RPM capability. The two-groove design accommodates dual belt systems common in modern serpentine configurations, while the polished finish provides superior corrosion resistance compared to raw aluminum, particularly important in high-humidity or salt-air environments where oxidation accelerates. At 1.79 pounds, this pulley's weight is negligible in overall engine balance but contributes to the efficient, purposeful engineering Small Block builders expect.

Engine builders restoring or upgrading Small Block Chevy platforms select this pulley when appearance and function must align. Street rod builders, vintage muscle car restorers, and competition engine shops specify Billet Specialties components for their precision tolerances and factory-quality finish. This upper pulley works specifically with short water pump designs, making compatibility verification essential before purchase. Whether supporting a stock rebuild or a high-output street engine, this two-groove configuration ensures consistent accessory belt drive without slippage or vibration under load.